A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5945-01-025-5956
NSN 5985-00-132-3473
NSN 6645-01-580-3258
NSN 6685-01-407-6445
NSN 6240-00-269-9477
NSN 5855-00-408-2611
NSN 5998-01-030-4806
NSN 6135-00-686-4777
NSN 6610-00-290-0758
NSN 6110-00-418-9363
NSN 5996-00-155-9309
NSN 5990-01-449-7090